Report of ACP, WG-I-07 Meeting

(Montreal, 2-5 June 2008)

ACP-WGI07-REPORT
05June 2008

AERONAUTICAL COMMUNICATIONS PANEL (ACP)

WG I – Internet Protocol Suite – 7th Meeting

Montreal, Canada,2nd – 5th June 2008

DRAFT - Report of ACP WGI-07Meeting

Presented by the Rapporteur (Andy Colón)

ACPWGI_ WG_I_Meeting_7_Report june 2008 draft Page1

Report of ACP, WG-I-07 Meeting

(Montreal, 2-5 June 2008)

Table of Contents

1.AGENDA ITEM 1: MEETING ORGANIZATIONAL ISSUES

2.AGENDA ITEM 2: APPROVAL OF THE AGENDA

3.AGENDA ITEM 3: OUTCOME OF WG-I/05 MEETING REPORT

3.1 Action Items from WG-I/05 Meeting Report

3.2Review WG-I/05 Meeting Report , revised as WP12

4.AGENDA ITEM 4: DEVELOPMENT OF TECHNICAL MATERIAL ARISING FROM ANY NEW/REVISED REQUIREMENTS

4.1 Receive status and discuss new material from Internet Subgroup

4.2Receive status and discuss new material from GM and VoIP Subgroup

4.3Receive status and discuss new material from Security and Mobility Subgroup

5.AGENDA ITEM 5: FUTURE WORK FOR NEXT MEETING

6.AGENDA ITEM 6: COORDINATION WITH OTHER GROUPS

7.AGENDA ITEM 7: NEW BUSINESS

APPENDIX A

ACP WGI AGENDA

APPENDIX B WORKING PAPER LIST

APPENDIX C LIST OF ATTENDEES

ACPWGI_ WG_I_Meeting_7_Report june 2008 draft Page1

Report of ACP, WG-I-07 Meeting

(Montreal, 2-5 June 2008)

1.AGENDA ITEM 1: MEETING ORGANIZATIONAL ISSUES

1.1The Working Group Rapporteur, Andy Colón, welcomed the participants to the 7th meeting of Working Group I of the ICAO Aeronautical Communications Panel (ACP).Loftur Jonasson is the ACP Secretary.

1.2The seventh meeting of Working Group I was held in Montreal, Canada from the2nd to 5thofJune 2008, at the ICAO Office in Montreal. WG-I is responsible for continuing the work assigned by ACP/1 for the development of the ICAO Aeronautical Telecommunication Network (ATN), to be based on Internet Protocol Suite (IPS) standards.

1.3The meeting was attended by 11 experts and the Panel Secretary, Mr.L. Jonasson. The list of participants is in Appendix C of this report. Fifteen working papers,one information paper, and one flimsy were presented at the meeting. The working papers are listed in Appendix B to this report. These papers are available on the ACP website (

2.AGENDA ITEM 2: APPROVAL OF THE AGENDA

2.1The draft agenda, as communicated by the Rapporteur to the memberswas approved, as presented. The agenda is in Appendix A to this report.

3.AGENDA ITEM 3: OUTCOME OF WG-I/05MEETING REPORT

3.1 Action Items from WG-I/06 Meeting Report

3.1.1Eivan Cerasi will make a request to EUROCAE WG-67 Chairman to forward VoIP documents to WG-I for review. EUROCAE-67 documents are being reviewed to be considered for reference in the Manual for the ATN using IPS Standards and Protocols DOC 9896, in support of VoIP. A link for the EUROCAE-67 documents was forwarded to the WG-I Chairman, closing this action.

3.2Review WG-I/06 Meeting Report , revised as WP12

4.AGENDA ITEM 4: DEVELOPMENT OF TECHNICAL MATERIAL ARISING FROM ANY NEW/REVISED REQUIREMENTS

4.1 Receive status and discuss new material from Internet Subgroup

4.1.1Eivan Cerasi presented WP12, IP Class of Service. WP12 which contains proposed QoS provisions for Document 9896 Part I and Part III. The paper describes that supported voice over IP services over a DiffServ enabled network are to be assigned to the Expedited Forwarding (EF) class. The paper further proposes that all supported ATN applications (described in Annex 10) are to be assigned to one or more Assured Forwarding (AF) class. As a result, internal network QoS mechanisms to support the CoS are not mandated as these are usually vendor dependent. The paper proposes an example scenario supporting the guidance material. The group accepts that the proposals are to be integrated into Document 9896, Part I and III.

4.1.2Rapporteur presented WP14 Doc 9896 v13f. WP14 was presented to finalize all changes to the current draft Doc 9896, and to validate requirements in preparation for final release. WG-I began a detailed review of Doc 9896, WG-I generated comments which arehighlighted in WP14a. At the next meeting WG-I will complete the review of the baseline Doc 9896.

4.2Receive status and discuss new material from GM and VoIP Subgroup

4.2.1Eivan Cerasi presented WP05, Revised Guidance Material for OLDI/FMTP (rev1). WP05 is an update to previous contribution to WGI#6. WP05 now includes a reference to the ICAO Document 9694 which indicates the relationship between AIDC and OLDI messages. During the meeting, WP05 is further edited for proper integration into Document 9896 Part III. The updated version of WP05 is available on the WGI#7 webpage.

4.2.2Vic Patel and Tom Mc Parland presented WP06, Proposed Security Guidance for the Manual for the ATN using IPS Standards and Protocols. This security guidance for the ATN using IPS Standards and Protocols contains a description of the rational for the requirements in Part I, section 2.6 of the Technical Manual (Part I) with background information where additional clarification is warranted and general guidance for implementation of security. WG-I accepted these changes as presented, this security guidance update will be included in Doc 9896, Part III.

4.2.3Vic Patel and Tom Mc Parland presented WP08, Proposed Guidance for IPS Mobility Management. This paper proposes mobility guidance for Doc 9896, “Manual for the ATN using IPS Standards and Protocols.” This guidance covers Mobile IPv6, enhancements to MIPv6, and Proxy Mobile IPv6. WG-I accepted this paper as presented, the mobility guidance will be included in Doc 9896, Part III..

4.2.4Kelly Kitchens presented WP11, ATN IPS Guidance Material. WP11 is the current status of Doc 9896 Part III. WP11 was reviewed by WG-I, with the most recent changes highlighted in blue. Minor recommendations where accepted for the next revision of Part III. Kelly Kitchens and the Rapporteur will work to incorporate the most current updates, and have a complete Doc 9896, with Part I, II and III incorporated, for distribution within one month.

4.2.5Greg Saccone presented WP13, IPS Manual and Guidance Air-Ground Applications (update). The paper is an update to WP10, of WG-I Meeting 6. The paper described the latest version of the proposed new dialogue service that allows legacy ATN applications to run over the IPS protocol stack, including use of either TCP or UDP. The update paper was accepted by the group, and will be incorporated in Doc 9896, Part II section 2.2.

.

4.3Receive status and discuss new material from Security and Mobility Subgroup

4.3.1Daniel Medina presented WP02, Draft ICAO IPv6 Addressing Plan.. This paper presents two options for the definition of the IPv6 unicast address format in the ATN IPS. The approach is based on the Mobile IPv6 mobility solution, where each airborne site is associated with a Mobility Service Provider (MSP). Instead of ICAO having to request anything from IANA, the organizations wishing to act as MSPs request a /32 allocation from a RIR. ICAO just recommends MSPs to use the 24 bit aircraft address to uniquely identify their airborne sites, resulting in a common fixed /56 boundary for all airborne sites of any size.

The final conclusion of the group for ICAO IPv6 Address Allocation Plan for Airborne Sites is:

Note.- IPv6 address allocation for ground systems will be dealt with separately.

RIRs allocate Mobility Service Providers (MSPs) a /32 to be used for airborne site allocation. MSPs may be ACSPs, ANSPs, airlines, airport authorities, government organizations, etc. Beyond this 32 bit boundary, ICAO recommends the IPv6 address format for airborne sites shown below.

In particular:

1. Each aircraft constitutes a /56 IPv6 end site, based on the ICAO 24 bit aircraft address.

2. Mobile IPv6 is assumed as the mobility solution. Each aircraft is assumed to be associated with one or more

3. An aircraft may have different subnets for different services (ATS, AOC, AAC, APC, etc.).

Mobility Service Providers (MSPs), which deploy a Home Agent advertising a /32 aggregate prefix route that contains the aircraft's assignment.

Mobility Service Provider (MSP): a service provider that provides Mobile IPv6 service (i.e. Home Agents).

.

4.3.2Max Ehammer presented WP03, Security for IP based Aeronautical Networks Analysis. This document is part I of a two part document discussing security issues of aeronautical networks. Within this paper assumptions on the structure of the ATN are developed and analysed. A problem statement and a set of requirements are derived. The discussion presented is largely independent of the technological implementation of the ATN. The group found the material to be valuable for inclusion in Doc 9896 Part III. Tom Mc Parland will coordinate with Max Ehammer, for specifics of material to be moved into the security section of Doc 9896, Part III .

4.3.3Max Ehammer presented WP04, Security for IP based Aeronautical Networks: Technological Aspects. The paper is organized as follows: Chapter 2 provides information about neighbor discovery and security, chapter 3 discusses authentication in aeronautical networks, chapter 4 shows mobility functionalities and security, and chapter 5 gives an overview of end-to-end security. At the end open issues are listed which need to be clarified in order to establish a proper security infrastructure for IP based aeronautical networks. The group found the material to be valuable for inclusion in Doc 9896 Part III. Tom Mc Parland will coordinate with Max Ehammer, for specifics of material to be moved into the security section of Doc 9896, Part III.

4.3.4Vic Patel and Tom Mc Parland presented WP07, Updated Security Requirements for the “Manual for the ATN using IPS Standards and Protocols”. This paper provides updated security requirements for Doc 9896, “Manual for the ATN using IPS Standards and Protocols.” This paper is an update of working paper 9 from the 6th meeting of Working Group I. Changes from ACP-WGI06/WP09 are depicted as red-line inserts and strikeouts. WG-I accepted the changes as presented, and Doc 9896, Part I, section 2.6 will be updated from this paper.

4.4Discuss status of Application work;

4.4.1Greg Saccone presented WP09, 10, IPS DS Interface update. This paper is an update to the primitive and service definitions for an IPS interface to the existing Dialogue Service. The updates were accepted by the group, and the material will be included in Doc 9896, Part III.

4.5New Papers

4.5.1Naoki Kanada presented IP01, FAA-JCAB ATN Router Interoperability Testing over IPv4 and IPv6 Sub-Networks using the Public Internet. Following on from previous interoperability test efforts, the Federal Aviation Administration (FAA) TechnicalCenter and the Electronic Navigation Research Institute (ENRI) carried out interoperability and ATN data communication tests over IPv4 and IPv6 connectionless sub-networks via the public Internet. The purpose was to confirm the interoperability of the IP SNDCF implementations, to validate the IP SNDCF technical provisions, and to carry out a preliminary test of end-to-end air-ground communication in a simulated environment with an IP network as the ground network. Test cases examined the nominal protocol behaviour as well as recovery from link failures and packet loss. No problems were found with the IP SNDCF technical provisions. However, the issue of Path MTU may require careful consideration in IPv6 networks. The group accepted the paper as presented.

4.5.2Naoki Kanada presented IP02, ATN and IPS. The paper is an informational paper on IP, with issues and concerns that should be addressed, when implementing IP. The group acknowledged the submission of the paper.

5.AGENDA ITEM 5: FUTURE WORK FOR NEXT MEETING

5.1The future work plans, and recommendations are listed below.

The material to be developed for Manual for ATN using IPS Standards and Protocols Doc 9896:

  • ATN/IPSRequirements for VoIP and Mobility
  • ATNIPSRequirements on Detailed Technical Specifications
  • ATN IPS Guidance Material
  • ATN IPS Addressing Plan
  • ATN IPS Security Material
  • ATN/IPS accommodations for Legacy Applications

6.AGENDA ITEM 6: COORDINATION WITH OTHER GROUPS

6.1WG-I Meeting are being planned to occur in conjunction with regional AMHS Workshop meeting to facilitate coordination.

7.AGENDA ITEM 7: NEW BUSINESS

7.1 The tentative meeting schedule for 2008 is listed below, please note that all meeting are in Montreal, unless specifically identified as other:

  • August 25-29Montreal
  • October 27-31Montreal

END

ACPWGI_ WG_I_Meeting_7_Report june 2008 draft Page1

Report of ACP, WG-I-07 Meeting

(Montreal, 2-5 June 2008)

APPENDIX A

ACP WGI AGENDA

AERONAUTICAL COMMUNICATION PANEL

Working Group I – Internet Protocol Suite

7thMeeting

2nd –5th June 2008

Montreal, Canada

Agenda

  1. Meeting Organizational Issues
  2. Approval of the Agenda
  3. Discuss 6th WG-I Meeting
  4. Discuss Action Items from WG-I Meeting
  5. Review WG-I 6th Meeting Report
  6. Development of technical material arising from any new/revised requirements
  7. Receive status and discuss new material from Internet Subgroup
  8. Receive status and discuss new material from GM and VoIP Subgroup
  9. Receive status and discuss new material from Security and Mobility Subgroup
  10. Discuss status of Application Work
  11. Review the latest version of the IPS G-G Manual on Detailed Technical Specifications
  12. New Papers
  13. Future work for next meeting - allocate actions
  14. Output of WG-I to other Groups
  15. New Business

***END***

ACPWGI_ WG_I_Meeting_7_Report june 2008 draft Page1

Report of ACP, WG-I-07 Meeting

(Montreal, 2-5 June 2008)

APPENDIX B WORKING PAPER LIST

WG-I – Internet Protocol Suite

7th Meeting

2nd – 5th June 2008

Montreall, Canada

WP No. / Agenda Item / Presenter / WP Title
WP0701 / 2.0 / Rapporteur / Invitation / Nomination form / Draft Agenda
WP0702 / 4.3 / Daniel Medina, Christian Bauer, Serkan Ayaz and Frank Schreckenbach / Draft ICAO IPv6 Addressing Plan
WP0703 / 4.3 / Max Ehammer and Thomas Graeupl / Security for IP based aeronautical networks: Analysis
WP0704 / 4.3 / Max Ehammer, Thomas Graeupl, Serkan Ayaz and Christian Bauer / Security for IP based aeronautical networks: Technological Aspects
WP0705 / 4.2 / Eivan Cerasi / Revised Guidance material for OLDI/FMTP (rev1)
WP0706 / 4.2 / Vic Patel and Tom McParland / Proposed Security Guidance for the
“Manual for the ATN using IPS Standards and Protocols"
WP0707 / 4.3 / Vic Patel and Tom McParland / Updated Security Requirements for the
“Manual for the ATN using IPS Standards and Protocols”
WP0708 / 4.2 / Vic Patel and Tom McParland / Proposed Guidance for IPS Mobility Management
WP0709 / 4.4 / Greg Saccone / IPS Dialogue Service Interface Update
WP0710 / 3.1 / Rapporteur / Report of ACP WG-I/6
WP0711 / 4.2 / Kelly Kitchens / ATN IPS Guidance Material
WP0712 / 4.1 / Eivan Cerasi / IPS Classes of Service
WP0713 / 4.2 / Greg Saccone / IPS Manual and Guidance Air-Ground Application Sections
WP0714 / Rapporteur / Doc 9896 rev13g_redlines
IP0701 / Japan and the U.S.A. / FAA-JCAB ATN Router Interoperability Testing over IPv4 and IPv6 Sub-Networks using the Public Internet
IP0702 / Naoki Kanada Tom McParland / ATN and IP

ACPWGI_ WG_I_Meeting_7_Report june 2008 draft Page1

APPENDIX C LIST OF ATTENDEES

ACP WGI-7 – Montreal, Canada – 2nd – 5th June 2008

LIST OF ATTENDEES

ICAO ACP-WG I - Internet Protocol Suite (IPS): Meeting 7, Montreal, Canada

NAME / ORGANIZATION NAME / ADDRESS / PHONE / FAX / E-MAIL
Colon, Andy / FAA/USA / FAA Technical Ctr. AJP-7150 Atlantic CityInt.Airport, Atlantic CityNJ08405 / +1 609-485-4348 /
McParland, Thomas / BCI/FAA / 304 Harper Drive Suite 203
Moorestown, NJ08057 / 1-609-425-4410 /
Kitchens, Kelly / BAE/FAA/USA / 901 D Street, Suite 850, Washington, DC20024, USA / +1 202-646 5931
+1 202-646 5815 /
Patel, Vidyut / FAA/USA / FAA Technical Ctr. AJP-7140 Atlantic CityInt.Airport, Atlantic CityNJ08405 / +16094855046
+6094855630 /
Jonasson, Loftur / ICAO
Panel Secretary / 999 University Street, Montreal, Quebec, Canada, H3C 5H7 / +1-514-954 8219
x 7130
+1-514-954 6759 /
Saccone, Greg / The Boeing Company / The Boeing Company
PO Box 3707 MC 8R079
SeattleUSA / +1 253 657 6370
+1 253 657 3346 /
Kerczewski, Robert / NASA / GlennResearchCenter
21000 Brookpark Road
Mail Stop 60-1
Cleveland, Ohio44135 / T 216-433-3434
F 216-443-6371 /
Medina, Daniel / German Aerospace Centre (DLR) / Institute of Communications and Navigation
Oberpfaffenhofen
82234 Wessling Germany / +49 81 5328 2836
Fax
+48 81 5328 1871 /
Kanada, Naoki / ENRI / 7-42-23 Jindaiji-higashi-machi
Chofu, Tokyo
182-0012 JAPAN / +81-422-41-3398
F+81-422-41-3176 /
Ehammer, Max / University of Salzberg / Dept of CS, Aeronautical Digital Communications Group
Jakob Haringer Str. 2
5010 Salsburg
Austria / T+43-0-662-8044-6425
F+43-0-662-8044-172 /
Cerasi, Evian / EUROCONTROL / EUROCONTROL DAP/CSP
96 Ruede la Fusee
B-1130
Brussels, Belgium / +3227293791 /

Page 1 of 11